Real-time Measurement Technology of Digital Speckle Deformation Based on Fourier Transform

被引：0
|
作者：
Chen Zhu [1 ]
Chen Zhenkai [1 ]
Yu Yingjie [1 ]
Chen Xiangyan [1 ]
Ying Zhijun [1 ]
He Tingting [1 ]
机构：
[1] Shanghai Univ, Sch Mech & Elect Engn & Automat, Shanghai, Peoples R China
来源：
2022 IEEE 24TH INTERNATIONAL WORKSHOP ON MULTIMEDIA SIGNAL PROCESSING (MMSP) | 2022年
关键词：
digital scattering; Fourier transform; off-surface deformation; real-time measurement;
D O I：
10.1109/MMSP55362.2022.9949602
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
This paper proposes a real-time measurement technology of digital speckle deformation based on Fourier transform by slightly improving the existing out-of-plane deformation measurement technology of planar objects. The speckle image collected by the CCD is subjected to carrier elimination, inverse Fourier transform and other methods to obtain the speckle interference fringes with low noise and high contrast. The experimental results of the out-of-plane deformation measurement of the aluminum plate show that the technology can measure the real-time deformation of the tested piece.
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页数：5
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